diff --git a/SpineViewer/Controls/SpineViewPropertyGrid.cs b/SpineViewer/Controls/SpineViewPropertyGrid.cs
index 2d35140..38e2397 100644
--- a/SpineViewer/Controls/SpineViewPropertyGrid.cs
+++ b/SpineViewer/Controls/SpineViewPropertyGrid.cs
@@ -85,7 +85,7 @@ namespace SpineViewer.Controls
 
             var spine = selectedSpines[0].Skin.Spine;
 
-            if (spine.SkinNames.Count <= 0)
+            if (spine.SkinNames.Length <= 0)
             {
                 MessagePopup.Info("没有可用的皮肤");
                 return;
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject21.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject21.cs
index 2aa7368..c1e564a 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject21.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject21.cs
@@ -1,6 +1,8 @@
 using System;
 using System.Collections;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -87,11 +89,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, v) in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots[k.Key].Name].Add(v.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -197,7 +205,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject36.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject36.cs
index ccc42e5..3c48fe7 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject36.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject36.cs
@@ -1,6 +1,8 @@
 using System;
 using System.Collections;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -86,11 +88,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, v) in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[k.slotIndex].Name].Add(v.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -196,7 +204,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject37.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject37.cs
index 1c4d8b9..71c1562 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject37.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject37.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -83,11 +85,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, v) in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[k.slotIndex].Name].Add(v.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -167,7 +175,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject38.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject38.cs
index 5c3b2ed..a0da77f 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject38.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject38.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -90,11 +92,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var (k, v) in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[k.SlotIndex].Name].Add(v.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -172,7 +180,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject40.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject40.cs
index e2fb80e..73c1c9e 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject40.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject40.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -85,11 +87,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[e.SlotIndex].Name].Add(e.Attachment.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -167,7 +175,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject41.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject41.cs
index 20a6339..93e662b 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject41.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject41.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -85,11 +87,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[e.SlotIndex].Name].Add(e.Attachment.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -167,7 +175,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/Implementations/SpineObject/SpineObject42.cs b/SpineViewer/Spine/Implementations/SpineObject/SpineObject42.cs
index 21a8a9c..c931e35 100644
--- a/SpineViewer/Spine/Implementations/SpineObject/SpineObject42.cs
+++ b/SpineViewer/Spine/Implementations/SpineObject/SpineObject42.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Frozen;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -85,11 +87,17 @@ namespace SpineViewer.Spine.Implementations.SpineObject
                 }
             }
 
-            foreach (var skin in skeletonData.Skins)
-                skinNames.Add(skin.Name);
-
-            foreach (var anime in skeletonData.Animations)
-                animationNames.Add(anime.Name);
+            var _slotAttachmentNames = skeletonData.Slots.ToDictionary(v => v.Name, v => new List<string>() { EMPTY_ATTACHMENT });
+            foreach (var sk in skeletonData.Skins)
+            {
+                foreach (var e in sk.Attachments)
+                {
+                    _slotAttachmentNames[skeletonData.Slots.Items[e.SlotIndex].Name].Add(e.Attachment.Name);
+                }
+            }
+            SlotAttachmentNames = _slotAttachmentNames.ToFrozenDictionary(item => item.Key, item => item.Value.ToImmutableArray());
+            SkinNames = skeletonData.Skins.Select(v => v.Name).Where(v => v != "default").ToImmutableArray();
+            AnimationNames = skeletonData.Animations.Select(v => v.Name).ToImmutableArray();
 
             skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
@@ -167,7 +175,7 @@ namespace SpineViewer.Spine.Implementations.SpineObject
         {
             if (name == EMPTY_ANIMATION)
                 animationState.SetAnimation(track, EmptyAnimation, false);
-            else if (animationNames.Contains(name))
+            else if (AnimationNames.Contains(name))
                 animationState.SetAnimation(track, name, true);
         }
 
diff --git a/SpineViewer/Spine/SpineObject.cs b/SpineViewer/Spine/SpineObject.cs
index ee3ce0f..4b92d7e 100644
--- a/SpineViewer/Spine/SpineObject.cs
+++ b/SpineViewer/Spine/SpineObject.cs
@@ -6,6 +6,8 @@ using NLog;
 using System.Xml.Linq;
 using SpineViewer.Extensions;
 using SpineViewer.Utils;
+using System.Collections.Immutable;
+using System.Collections.Frozen;
 
 namespace SpineViewer.Spine
 {
@@ -14,6 +16,11 @@ namespace SpineViewer.Spine
     /// </summary>
     public abstract class SpineObject : ImplementationResolver<SpineObject, SpineImplementationAttribute, SpineVersion>, SFML.Graphics.Drawable, IDisposable
     {
+        /// <summary>
+        /// 空附件标记
+        /// </summary>
+        protected const string EMPTY_ATTACHMENT = "<Empty>";
+
         /// <summary>
         /// 空动画标记
         /// </summary>
@@ -65,9 +72,6 @@ namespace SpineViewer.Spine
         /// </summary>
         private SpineObject PostInit()
         {
-            SkinNames = skinNames.AsReadOnly();
-            AnimationNames = animationNames.AsReadOnly();
-
             // 必须 Update 一次否则包围盒还没有值
             update(0);
 
@@ -201,18 +205,6 @@ namespace SpineViewer.Spine
         }
         protected abstract bool flipY { get; set; }
 
-        /// <summary>
-        /// 包含的所有皮肤名称
-        /// </summary>
-        public ReadOnlyCollection<string> SkinNames { get; private set; }
-        protected readonly List<string> skinNames = [];
-
-        /// <summary>
-        /// 包含的所有动画名称
-        /// </summary>
-        public ReadOnlyCollection<string> AnimationNames { get; private set; }
-        protected readonly List<string> animationNames = [EMPTY_ANIMATION];
-
         /// <summary>
         /// 是否被选中
         /// </summary>
@@ -333,6 +325,21 @@ namespace SpineViewer.Spine
         }
         protected bool debugClippings = false;
 
+        /// <summary>
+        /// 所有槽位下可用的附件名
+        /// </summary>
+        public FrozenDictionary<string, ImmutableArray<string>> SlotAttachmentNames { get; protected set; }
+
+        /// <summary>
+        /// 包含的所有皮肤名称 (不含 default 默认皮肤)
+        /// </summary>
+        public ImmutableArray<string> SkinNames { get; protected set; }
+
+        /// <summary>
+        /// 包含的所有动画名称
+        /// </summary>
+        public ImmutableArray<string> AnimationNames { get; protected set; }
+
         /// <summary>
         /// 获取已加载的皮肤列表快照, 允许出现重复值
         /// </summary>
@@ -344,7 +351,7 @@ namespace SpineViewer.Spine
         /// </summary>
         public void LoadSkin(string name)
         {
-            if (!skinNames.Contains(name)) return;
+            if (!SkinNames.Contains(name)) return;
             lock (_lock)
             {
                 loadedSkins.Add(name);
@@ -372,7 +379,7 @@ namespace SpineViewer.Spine
         {
             lock (_lock)
             {
-                if (idx < 0 || idx >= loadedSkins.Count || !skinNames.Contains(name)) return;
+                if (idx < 0 || idx >= loadedSkins.Count || !SkinNames.Contains(name)) return;
                 loadedSkins[idx] = name;
                 reloadSkins();
             }
@@ -576,4 +583,4 @@ namespace SpineViewer.Spine
 
         #endregion
     }
-}
\ No newline at end of file
+}